Home / 7,169,712.15-9,894,077.69-3,906,553.89

Finding the Fourth Proportional to 7,169,712.15, 9,894,077.69 and 3,906,553.89

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Solution

The fourth proportional to 7,169,712.15, 9,894,077.69 and 3,906,553.89 is: 5,390,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,712.15 : 9,894,077.69 = 3,906,553.89 : x
  2. Step 2: Convert to fraction form
    7,169,712.15/9,894,077.69 = 3,906,553.89/x
  3. Step 3: Cross multiply
    7,169,712.15x = 9,894,077.69 × 3,906,553.89
  4. Step 4: Simplify right side
    7,169,712.15x = 38,651,747,668,298.95
  5. Step 5: Solve for x
    x = 38,651,747,668,298.95/7,169,712.15
  6. Step 6: Final answer
    x = 5,390,976.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.